Sergey Kudryavtsev
DevOps Architect at HID
Prague Metropolitan Area Czechia
Summary
👤
Senior🎓
Top SchoolSergey Kudryavtsev is a DevOps Architect based in Prague with 8+ years of experience bridging software development and infrastructure, progressing from lead system administrator to senior developer and now architecting cloud and on‑prem DevOps solutions. He has hands‑on expertise across AWS and Azure, containerization, CI/CD, and platform migrations, and has led DevOps initiatives at enterprises like Barclays, PwC and HID. Sergey’s background in administering complex AD, Exchange, VMware and networked environments gives him a rare operator-to-developer perspective that improves reliability and reduce churn. An active contributor to external-dns, he improved Infoblox integrations to stop Kubernetes-driven DNS record churn—demonstrating deep DNS and API troubleshooting skills. Colleagues rely on him to translate development needs into resilient, automated infrastructure and pragmatic processes.
8 years of coding experience
14 years of employment as a software developer
Bachelor's degree, International Law and Legal Studies, Bachelor's degree, International Law and Legal Studies at Belarusian Institute of LawHigh School Diploma, Computer Software Engineering, High School Diploma, Computer Software Engineering at Belarusian National Technical University
Английский, Czech, Russian
Github Skills (8)
apim10
kubernetes10
go10
api10
dns10
kubernetes-pods10
external-dns10
unit-test9
Programming languages (3)
Github contributions (5)
kubernetes-sigs/external-dns
Mar 2022 - May 2022
Configure external DNS servers (AWS Route53, Google CloudDNS and others) for Kubernetes Ingresses and Services
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:15 reviews, 6 commits, 13 PRs in 1 month
Contributions summary:Sergey primarily focused on improvements to the Infoblox provider within the external-dns project, which involves configuring external DNS servers for Kubernetes. Their contributions included migrating to a new client library, refactoring code to handle potential "not found" errors, and fixing issues related to record creation and deletion. Additionally, the user addressed a problem where changes in K8s were resulting in record churn and implemented improvements to prevent constant record deletion/creation. This work demonstrated a deep understanding of DNS server configurations and API interactions.
gcproute53dnsexternal-dnsk8s-sig-network
infobloxopen/infoblox-go-client
Mar 2021 - Nov 2022
Infoblox NIOS WAPI Go Client library
Contributions:43 reviews, 23 commits, 41 PRs in 1 year 8 months
golangwapiclient-librarygo-clientinfoblox
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